cpi->gld_fb_idx = 1;
cpi->alt_fb_idx = 2;
+ cpi->current_layer = 0;
+ cpi->use_svc = 0;
+
set_tile_limits(cpi);
cpi->fixed_divide[0] = 0;
cpi->alt_is_last = 0;
cpi->gold_is_alt = 0;
+ // Spatial scalability
+ cpi->number_spatial_layers = oxcf->ss_number_layers;
+
// Create the encoder segmentation map and set all entries to 0
CHECK_MEM_ERROR(cm, cpi->segmentation_map,
vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
cpi->oxcf.play_alternate && !cpi->refresh_alt_ref_frame) {
cpi->source_alt_ref_pending = 1;
cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+
+ // TODO(ivan): for SVC encoder, GF automatic update is disabled by using a
+ // large GF_interval
+ if (cpi->use_svc) {
+ cpi->frames_till_gf_update_due = INT_MAX;
+ }
}
if (!cpi->source_alt_ref_pending)
else if (!cpi->multi_arf_enabled && cpi->refresh_golden_frame &&
!cpi->refresh_alt_ref_frame) {
#else
- else if (cpi->refresh_golden_frame && !cpi->refresh_alt_ref_frame) {
+ else if (cpi->refresh_golden_frame && !cpi->refresh_alt_ref_frame &&
+ !cpi->use_svc) {
#endif
/* Preserve the previously existing golden frame and update the frame in
* the alt ref slot instead. This is highly specific to the current use of
static void scale_references(VP9_COMP *cpi) {
VP9_COMMON *cm = &cpi->common;
int i;
+ int refs[ALLOWED_REFS_PER_FRAME] = {cpi->lst_fb_idx, cpi->gld_fb_idx,
+ cpi->alt_fb_idx};
for (i = 0; i < 3; i++) {
- YV12_BUFFER_CONFIG *ref = &cm->yv12_fb[cm->ref_frame_map[i]];
+ YV12_BUFFER_CONFIG *ref = &cm->yv12_fb[cm->ref_frame_map[refs[i]]];
if (ref->y_crop_width != cm->width ||
ref->y_crop_height != cm->height) {
scale_and_extend_frame(ref, &cm->yv12_fb[new_fb]);
cpi->scaled_ref_idx[i] = new_fb;
} else {
- cpi->scaled_ref_idx[i] = cm->ref_frame_map[i];
- cm->fb_idx_ref_cnt[cm->ref_frame_map[i]]++;
+ cpi->scaled_ref_idx[i] = cm->ref_frame_map[refs[i]];
+ cm->fb_idx_ref_cnt[cm->ref_frame_map[refs[i]]]++;
}
}
}
}
}
-
-int vp9_receive_raw_frame(VP9_PTR ptr, unsigned int frame_flags,
- YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
- int64_t end_time) {
- VP9_COMP *cpi = (VP9_COMP *) ptr;
+static void check_initial_width(VP9_COMP *cpi, YV12_BUFFER_CONFIG *sd) {
VP9_COMMON *cm = &cpi->common;
- struct vpx_usec_timer timer;
- int res = 0;
-
if (!cpi->initial_width) {
// TODO(jkoleszar): Support 1/4 subsampling?
- cm->subsampling_x = sd->uv_width < sd->y_width;
- cm->subsampling_y = sd->uv_height < sd->y_height;
+ cm->subsampling_x = (sd != NULL) && sd->uv_width < sd->y_width;
+ cm->subsampling_y = (sd != NULL) && sd->uv_height < sd->y_height;
alloc_raw_frame_buffers(cpi);
cpi->initial_width = cm->width;
cpi->initial_height = cm->height;
}
+}
+
+
+int vp9_receive_raw_frame(VP9_PTR ptr, unsigned int frame_flags,
+ YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
+ int64_t end_time) {
+ VP9_COMP *cpi = (VP9_COMP *) ptr;
+ struct vpx_usec_timer timer;
+ int res = 0;
+
+ check_initial_width(cpi, sd);
vpx_usec_timer_start(&timer);
if (vp9_lookahead_push(cpi->lookahead, sd, time_stamp, end_time, frame_flags,
cpi->active_map_enabled ? cpi->active_map : NULL))
return 0;
}
+int vp9_set_size_literal(VP9_PTR comp, unsigned int width,
+ unsigned int height) {
+ VP9_COMP *cpi = (VP9_COMP *)comp;
+ VP9_COMMON *cm = &cpi->common;
+
+ check_initial_width(cpi, NULL);
+
+ if (width) {
+ cm->width = width;
+ if (cm->width * 5 < cpi->initial_width) {
+ cm->width = cpi->initial_width / 5 + 1;
+ printf("Warning: Desired width too small, changed to %d \n", cm->width);
+ }
+ if (cm->width > cpi->initial_width) {
+ cm->width = cpi->initial_width;
+ printf("Warning: Desired width too large, changed to %d \n", cm->width);
+ }
+ }
+
+ if (height) {
+ cm->height = height;
+ if (cm->height * 5 < cpi->initial_height) {
+ cm->height = cpi->initial_height / 5 + 1;
+ printf("Warning: Desired height too small, changed to %d \n", cm->height);
+ }
+ if (cm->height > cpi->initial_height) {
+ cm->height = cpi->initial_height;
+ printf("Warning: Desired height too large, changed to %d \n", cm->height);
+ }
+ }
+
+ assert(cm->width <= cpi->initial_width);
+ assert(cm->height <= cpi->initial_height);
+ update_frame_size(cpi);
+ return 0;
+}
+
+int vp9_switch_layer(VP9_PTR comp, int layer) {
+ VP9_COMP *cpi = (VP9_COMP *)comp;
+
+ if (cpi->use_svc) {
+ cpi->current_layer = layer;
+
+ // Use buffer i for layer i LST
+ cpi->lst_fb_idx = layer;
+
+ // Use buffer i-1 for layer i Alt (Inter-layer prediction)
+ if (layer != 0) cpi->alt_fb_idx = layer - 1;
+
+ // Use the rest for Golden
+ if (layer < 2 * cpi->number_spatial_layers - NUM_REF_FRAMES)
+ cpi->gld_fb_idx = cpi->lst_fb_idx;
+ else
+ cpi->gld_fb_idx = 2 * cpi->number_spatial_layers - 1 - layer;
+
+ printf("Switching to layer %d:\n", layer);
+ printf("Using references: LST/GLD/ALT [%d|%d|%d]\n", cpi->lst_fb_idx,
+ cpi->gld_fb_idx, cpi->alt_fb_idx);
+ } else {
+ printf("Switching layer not supported. Enable SVC first \n");
+ }
+ return 0;
+}
+void vp9_set_svc(VP9_PTR comp, int use_svc) {
+ VP9_COMP *cpi = (VP9_COMP *)comp;
+ cpi->use_svc = use_svc;
+ if (cpi->use_svc) printf("Enabled SVC encoder \n");
+ return;
+}
int vp9_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest) {
int i, j;
RANGE_CHECK_HI(cfg, rc_resize_down_thresh, 100);
RANGE_CHECK(cfg, g_pass, VPX_RC_ONE_PASS, VPX_RC_LAST_PASS);
+ RANGE_CHECK(cfg, ss_number_layers, 1,
+ VPX_SS_MAX_LAYERS); /*Spatial layers max */
/* VP8 does not support a lower bound on the keyframe interval in
* automatic keyframe placement mode.
*/
oxcf->error_resilient_mode = cfg.g_error_resilient;
oxcf->frame_parallel_decoding_mode = vp8_cfg.frame_parallel_decoding_mode;
+
+ oxcf->ss_number_layers = cfg.ss_number_layers;
/*
printf("Current VP9 Settings: \n");
printf("target_bandwidth: %d\n", oxcf->target_bandwidth);
MAP(VP8E_SET_ARNR_TYPE, xcfg.arnr_type);
MAP(VP8E_SET_TUNING, xcfg.tuning);
MAP(VP8E_SET_CQ_LEVEL, xcfg.cq_level);
+ MAP(VP9E_SET_MAX_Q, ctx->cfg.rc_max_quantizer);
+ MAP(VP9E_SET_MIN_Q, ctx->cfg.rc_min_quantizer);
MAP(VP8E_SET_MAX_INTRA_BITRATE_PCT, xcfg.rc_max_intra_bitrate_pct);
MAP(VP9E_SET_LOSSLESS, xcfg.lossless);
MAP(VP9E_SET_FRAME_PARALLEL_DECODING, xcfg.frame_parallel_decoding_mode);
return VPX_CODEC_INVALID_PARAM;
}
+static vpx_codec_err_t vp9e_set_width(vpx_codec_alg_priv_t *ctx, int ctr_id,
+ va_list args) {
+ unsigned int *data = va_arg(args, unsigned int *);
+ if (data) {
+ int res;
+ res = vp9_set_size_literal(ctx->cpi, *data, 0);
+ if (!res) {
+ return VPX_CODEC_OK;
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+}
+
+static vpx_codec_err_t vp9e_set_height(vpx_codec_alg_priv_t *ctx,
+ int ctr_id,
+ va_list args) {
+ unsigned int *data = va_arg(args, unsigned int *);
+
+ if (data) {
+ int res;
+ res = vp9_set_size_literal(ctx->cpi, 0, *data);
+
+ if (!res) {
+ return VPX_CODEC_OK;
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+}
+
+static vpx_codec_err_t vp9e_set_layer(vpx_codec_alg_priv_t *ctx,
+ int ctr_id,
+ va_list args) {
+ unsigned int *data = va_arg(args, unsigned int *);
+
+ if (data) {
+ int res;
+ res = 0;
+
+ res = vp9_switch_layer(ctx->cpi, *data);
+
+ if (!res) {
+ return VPX_CODEC_OK;
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+ } else {
+ return VPX_CODEC_INVALID_PARAM;
+ }
+}
+
+static vpx_codec_err_t vp9e_set_svc(vpx_codec_alg_priv_t *ctx, int ctr_id,
+ va_list args) {
+ int data = va_arg(args, int);
+ vp9_set_svc(ctx->cpi, data);
+ return VPX_CODEC_OK;
+}
static vpx_codec_ctrl_fn_map_t vp9e_ctf_maps[] = {
{VP8_SET_REFERENCE, vp9e_set_reference},
{VP8E_SET_ARNR_TYPE, set_param},
{VP8E_SET_TUNING, set_param},
{VP8E_SET_CQ_LEVEL, set_param},
+ {VP9E_SET_MAX_Q, set_param},
+ {VP9E_SET_MIN_Q, set_param},
{VP8E_SET_MAX_INTRA_BITRATE_PCT, set_param},
{VP9E_SET_LOSSLESS, set_param},
{VP9E_SET_FRAME_PARALLEL_DECODING, set_param},
{VP9_GET_REFERENCE, get_reference},
+ {VP9E_SET_WIDTH, vp9e_set_width},
+ {VP9E_SET_HEIGHT, vp9e_set_height},
+ {VP9E_SET_LAYER, vp9e_set_layer},
+ {VP9E_SET_SVC, vp9e_set_svc},
{ -1, NULL},
};
0, /* kf_min_dist */
9999, /* kf_max_dist */
+ VPX_SS_DEFAULT_LAYERS, /* ss_number_layers */
+
#if VPX_ENCODER_ABI_VERSION == (1 + VPX_CODEC_ABI_VERSION)
1, /* g_delete_first_pass_file */
"vp8.fpf" /* first pass filename */
--- /dev/null
+/*
+ * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+/*
+ * This is an example demonstrating how to implement a multi-layer
+ * VP9 encoding scheme based on spatial scalability for video applications
+ * that benefit from a scalable bitstream.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <time.h>
+#include <string.h>
+#include <unistd.h>
+#include <libgen.h>
+#define VPX_CODEC_DISABLE_COMPAT 1
+#include "vpx/vpx_encoder.h"
+#include "vpx/vp8cx.h"
+#define interface (vpx_codec_vp9_cx())
+#define fourcc 0x30395056
+#define IVF_FILE_HDR_SZ (32)
+#define IVF_FRAME_HDR_SZ (12)
+#define NUM_BUFFERS 8
+
+char *input_filename;
+char *output_filename;
+unsigned int number_frames_to_code = 60 * 60;
+unsigned int number_frames_to_skip = 0;
+unsigned int number_spatial_layers = 5;
+unsigned int key_period = 100;
+
+typedef enum ENCODING_MODE {
+ INTER_LAYER_PREDICTION_I,
+ INTER_LAYER_PREDICTION_IP,
+ USE_GOLDEN_FRAME
+} ENCODING_MODE;
+
+static void mem_put_le16(char *mem, unsigned int val) {
+ mem[0] = val;
+ mem[1] = val >> 8;
+}
+
+static void mem_put_le32(char *mem, unsigned int val) {
+ mem[0] = val;
+ mem[1] = val >> 8;
+ mem[2] = val >> 16;
+ mem[3] = val >> 24;
+}
+
+static void usage(char *program_name) {
+ printf(
+ "Usage: %s [-f frames] [-s skip_frames] [-w width] [-h height] \n\t"
+ "[-n rate_num] [-d rate_den] [-b bitrate] [-l layers] "
+ "<input_filename> <output_filename>\n",
+ basename(program_name));
+ exit(EXIT_FAILURE);
+}
+
+static void die(const char *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ vprintf(fmt, ap);
+ if (fmt[strlen(fmt) - 1] != '\n') printf("\n");
+ exit(EXIT_FAILURE);
+}
+
+static void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
+ const char *detail = vpx_codec_error_detail(ctx);
+
+ printf("%s: %s\n", s, vpx_codec_error(ctx));
+ if (detail) printf(" %s\n", detail);
+ exit(EXIT_FAILURE);
+}
+
+static int read_frame(FILE *f, vpx_image_t *img) {
+ size_t nbytes, to_read;
+ int res = 1;
+
+ to_read = img->w * img->h * 3 / 2;
+ nbytes = fread(img->planes[0], 1, to_read, f);
+ if (nbytes != to_read) {
+ res = 0;
+ if (nbytes > 0)
+ printf("Warning: Read partial frame. Check your width & height!\n");
+ }
+ return res;
+}
+
+static int read_dummy_frame(vpx_image_t *img) {
+ size_t to_read;
+
+ to_read = img->w * img->h * 3 / 2;
+ memset(img->planes[0], 129, to_read);
+ return 1;
+}
+
+static void write_ivf_file_header(FILE *outfile, const vpx_codec_enc_cfg_t *cfg,
+ int frame_cnt) {
+ char header[32];
+
+ if (cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) return;
+ header[0] = 'D';
+ header[1] = 'K';
+ header[2] = 'I';
+ header[3] = 'F';
+ mem_put_le16(header + 4, 0); /* version */
+ mem_put_le16(header + 6, 32); /* headersize */
+ mem_put_le32(header + 8, fourcc); /* headersize */
+ mem_put_le16(header + 12, cfg->g_w); /* width */
+ mem_put_le16(header + 14, cfg->g_h); /* height */
+ mem_put_le32(header + 16, cfg->g_timebase.den); /* rate */
+ mem_put_le32(header + 20, cfg->g_timebase.num); /* scale */
+ mem_put_le32(header + 24, frame_cnt); /* length */
+ mem_put_le32(header + 28, 0); /* unused */
+
+ (void)fwrite(header, 1, 32, outfile);
+}
+
+static void write_ivf_frame_header(FILE *outfile,
+ const vpx_codec_cx_pkt_t *pkt) {
+ char header[12];
+ vpx_codec_pts_t pts;
+
+ if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) return;
+
+ pts = pkt->data.frame.pts;
+ mem_put_le32(header, pkt->data.frame.sz);
+ mem_put_le32(header + 4, pts & 0xFFFFFFFF);
+ mem_put_le32(header + 8, pts >> 32);
+
+ (void)fwrite(header, 1, 12, outfile);
+}
+
+static void check_parameters() {
+ if (number_spatial_layers > 5) die("Cannot support more than 5 layers");
+}
+
+static void parse_command_line(int argc, char **argv,
+ vpx_codec_enc_cfg_t *cfg) {
+ unsigned int width = 1920;
+ unsigned int height = 1080;
+ unsigned int timebase_num = 1;
+ unsigned int timebase_den = 60;
+ unsigned int bitrate = 1000;
+ int c;
+ vpx_codec_err_t res;
+
+ opterr = 0;
+ while ((c = getopt(argc, argv, "f:w:h:n:d:b:s:l:p:")) != -1) switch (c) {
+ case 'f':
+ number_frames_to_code = atoi(optarg);
+ break;
+ case 'w':
+ width = atoi(optarg);
+ break;
+ case 'h':
+ height = atoi(optarg);
+ break;
+ case 'n':
+ timebase_num = atoi(optarg);
+ break;
+ case 'd':
+ timebase_den = atoi(optarg);
+ break;
+ case 'b':
+ bitrate = atoi(optarg);
+ break;
+ case 's':
+ number_frames_to_skip = atoi(optarg);
+ break;
+ case 'l':
+ number_spatial_layers = atoi(optarg);
+ break;
+ case 'p':
+ key_period = atoi(optarg);
+ break;
+ case '?':
+ usage(argv[0]);
+ }
+
+ // Parse required parameters
+ if (argc - optind != 2) {
+ usage(argv[0]);
+ }
+
+ input_filename = argv[optind];
+ output_filename = argv[optind + 1];
+
+ if (width < 16 || width % 2 || height < 16 || height % 2)
+ die("Invalid resolution: %d x %d", width, height);
+
+ /* Populate encoder configuration */
+ res = vpx_codec_enc_config_default(interface, cfg, 0);
+ if (res) {
+ die("Failed to get config: %s\n", vpx_codec_err_to_string(res));
+ }
+ printf(
+ "Codec %s\nframes: %d, skip: %d, layers: %d\n"
+ "width %d, height: %d, \n"
+ "num: %d, den: %d, bitrate: %d, \n"
+ "key period: %d \n",
+ vpx_codec_iface_name(interface), number_frames_to_code,
+ number_frames_to_skip, number_spatial_layers, width, height, timebase_num,
+ timebase_den, bitrate, key_period);
+
+ // Do minimal check at the application level. Encoder parameters will be
+ // checked internally
+ check_parameters();
+
+ cfg->rc_target_bitrate = bitrate;
+ cfg->g_w = width;
+ cfg->g_h = height;
+ cfg->g_timebase.num = timebase_num;
+ cfg->g_timebase.den = timebase_den;
+ cfg->ss_number_layers = number_spatial_layers;
+}
+
+static void set_default_configuration(vpx_codec_enc_cfg_t *cfg) {
+ /* Real time parameters */
+ cfg->rc_dropframe_thresh = 0;
+ cfg->rc_end_usage = VPX_CBR;
+ cfg->rc_resize_allowed = 0;
+ cfg->rc_min_quantizer = 33;
+ cfg->rc_max_quantizer = 33;
+ cfg->rc_undershoot_pct = 100;
+ cfg->rc_overshoot_pct = 15;
+ cfg->rc_buf_initial_sz = 500;
+ cfg->rc_buf_optimal_sz = 600;
+ cfg->rc_buf_sz = 1000;
+
+ /* Enable error resilient mode */
+ cfg->g_error_resilient = 1;
+ cfg->g_lag_in_frames = 0;
+
+ /* Disable automatic keyframe placement */
+ cfg->kf_mode = VPX_KF_DISABLED;
+ cfg->kf_min_dist = cfg->kf_max_dist = 3000;
+}
+
+static void initialize_codec(vpx_codec_ctx_t *codec, vpx_codec_enc_cfg_t *cfg) {
+ int max_intra_size_pct;
+
+ /* Initialize codec */
+ if (vpx_codec_enc_init(codec, interface, cfg, VPX_CODEC_USE_PSNR))
+ die_codec(codec, "Failed to initialize encoder");
+
+ vpx_codec_control(codec, VP9E_SET_SVC, 1);
+ /* Cap CPU & first I-frame size */
+ vpx_codec_control(codec, VP8E_SET_CPUUSED, 1);
+ vpx_codec_control(codec, VP8E_SET_STATIC_THRESHOLD, 1);
+ vpx_codec_control(codec, VP8E_SET_NOISE_SENSITIVITY, 1);
+ vpx_codec_control(codec, VP8E_SET_TOKEN_PARTITIONS, 1);
+
+ max_intra_size_pct =
+ (int)(((double)cfg->rc_buf_optimal_sz * 0.5) *
+ ((double)cfg->g_timebase.den / cfg->g_timebase.num) / 10.0);
+ /* printf ("max_intra_size_pct=%d\n", max_intra_size_pct); */
+
+ vpx_codec_control(codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, max_intra_size_pct);
+}
+
+static int calculate_layer(int frame_cnt, int number_spatial_layers) {
+ if (frame_cnt == 0)
+ return 0;
+ else
+ return (frame_cnt + number_spatial_layers - 1) % number_spatial_layers;
+}
+
+static void switch_to_layer(int layer, unsigned int initial_width,
+ unsigned int initial_height,
+ vpx_codec_ctx_t *codec) {
+ // Set layer size
+ int scaling_factor_num[MAX_LAYERS] = {2, 1, 4, 2, 1};
+ int scaling_factor_den[MAX_LAYERS] = {9, 3, 9, 3, 1};
+
+ int quantizer[MAX_LAYERS] = {60, 53, 39, 33, 27};
+
+ unsigned int current_width;
+ unsigned int current_height;
+
+ current_width = initial_width *
+ scaling_factor_num[layer + 5 - number_spatial_layers] /
+ scaling_factor_den[layer + 5 - number_spatial_layers];
+ current_height = initial_height *
+ scaling_factor_num[layer + 5 - number_spatial_layers] /
+ scaling_factor_den[layer + 5 - number_spatial_layers];
+
+ current_width += current_width % 2;
+ current_height += current_height % 2;
+
+ vpx_codec_control(codec, VP9E_SET_WIDTH, ¤t_width);
+ vpx_codec_control(codec, VP9E_SET_HEIGHT, ¤t_height);
+
+ // Set layer context
+ vpx_codec_control(codec, VP9E_SET_LAYER, &layer);
+ vpx_codec_control(codec, VP9E_SET_MAX_Q,
+ quantizer[layer + 5 - number_spatial_layers]);
+ vpx_codec_control(codec, VP9E_SET_MIN_Q,
+ quantizer[layer + 5 - number_spatial_layers]);
+}
+
+static int get_flag(int is_I_frame_in_layer, int layer, ENCODING_MODE mode) {
+ // First layer
+ switch (mode) {
+ case INTER_LAYER_PREDICTION_I:
+ if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
+ if (layer == 0)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ else if (is_I_frame_in_layer)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
+ else
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ break;
+
+ case INTER_LAYER_PREDICTION_IP:
+ if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
+ if (layer == 0)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ else if (is_I_frame_in_layer)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
+ else
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF;
+ break;
+
+ case USE_GOLDEN_FRAME:
+ if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
+ if (2 * number_spatial_layers - NUM_BUFFERS <= layer) {
+ if (layer == 0)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_ARF;
+ else if (is_I_frame_in_layer)
+ return VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF |
+ VP8_EFLAG_NO_REF_LAST;
+ else
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
+ } else {
+ if (layer == 0)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ else if (is_I_frame_in_layer)
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
+ else
+ return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ }
+ break;
+ default:
+ return VPX_EFLAG_FORCE_KF;
+ }
+}
+
+int main(int argc, char **argv) {
+ FILE *infile, *outfile[MAX_LAYERS];
+ vpx_codec_ctx_t codec;
+ vpx_codec_enc_cfg_t cfg;
+ int frame_cnt = 0;
+ vpx_image_t raw;
+ int frame_avail = 1;
+ int got_data = 0;
+ int i;
+ int frames_in_layer[MAX_LAYERS] = {0};
+ clock_t before;
+ clock_t after;
+ int pts = 0; /* PTS starts at 0 */
+ int frame_duration = 1; /* 1 timebase tick per frame */
+
+ parse_command_line(argc, argv, &cfg);
+
+ // Allocate image buffer
+ if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, cfg.g_w, cfg.g_h, 32))
+ die("Failed to allocate image", cfg.g_w, cfg.g_h);
+
+ set_default_configuration(&cfg);
+
+ /* Open input file */
+ if (!(infile = fopen(input_filename, "rb")))
+ die("Failed to open %s for reading", argv[1]);
+
+ /* Open output file */
+ for (i = 0; i < number_spatial_layers; i++) {
+ char file_name[512];
+ snprintf(file_name, sizeof(file_name), "%s_%d.ivf", output_filename, i);
+ if (!(outfile[i] = fopen(file_name, "wb")))
+ die("Failed to open %s for writing", file_name);
+ write_ivf_file_header(outfile[i], &cfg, 0);
+ }
+
+ initialize_codec(&codec, &cfg);
+
+ // skip initial frames
+ for (i = 0; i < number_frames_to_skip; i++) {
+ read_frame(infile, &raw);
+ }
+
+ before = clock();
+ // Encoding frames
+ while ((frame_avail || got_data) &&
+ frame_cnt <= number_frames_to_code * number_spatial_layers) {
+ int flags = 0;
+ vpx_codec_iter_t iter = NULL;
+ const vpx_codec_cx_pkt_t *pkt;
+
+ int layer = calculate_layer(frame_cnt, number_spatial_layers);
+ int is_I_frame_in_layer =
+ (((frame_cnt - 1) / number_spatial_layers % key_period) == 0);
+ int is_dummy = (frame_cnt == 0);
+
+ if (is_dummy) { // Dummy frame
+ flags = VPX_EFLAG_FORCE_KF;
+ frame_avail = read_dummy_frame(&raw);
+
+ } else { // Regular frame
+ // Read a new frame only at the base layer
+ if (layer == 0) frame_avail = read_frame(infile, &raw);
+ switch_to_layer(layer, cfg.g_w, cfg.g_h, &codec);
+ flags = get_flag(is_I_frame_in_layer, layer, INTER_LAYER_PREDICTION_I);
+ }
+
+ // Actual Encoding
+ if (vpx_codec_encode(&codec, frame_avail ? &raw : NULL, pts, 1, flags,
+ VPX_DL_REALTIME))
+ die_codec(&codec, "Failed to encode frame");
+
+ got_data = 0;
+ // Process data / Get PSNR statistics
+ while ((pkt = vpx_codec_get_cx_data(&codec, &iter))) {
+ got_data = 1;
+ switch (pkt->kind) {
+ case VPX_CODEC_CX_FRAME_PKT:
+ for (i = layer; i < number_spatial_layers; i++) {
+ write_ivf_frame_header(outfile[i], pkt);
+ (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz,
+ outfile[i]);
+ frames_in_layer[i]++;
+ }
+ break;
+ case VPX_CODEC_PSNR_PKT:
+ if (frame_cnt != 0)
+ printf(
+ "Processed Frame %d, layer %d, PSNR(Total/Y/U/V): "
+ "%2.3f %2.3f %2.3f %2.3f \n",
+ (frame_cnt - 1) / number_spatial_layers + 1, layer,
+ pkt->data.psnr.psnr[0], pkt->data.psnr.psnr[1],
+ pkt->data.psnr.psnr[2], pkt->data.psnr.psnr[3]);
+ break;
+ default:
+ break;
+ }
+ }
+ frame_cnt++;
+ // TODO(ivan): Modify ts later if(!layer)
+ pts += frame_duration;
+ }
+ // end while
+
+ after = clock();
+ printf("Processed %d frames in different resolutions in %ld ms.\n",
+ frame_cnt - 1, (int)(after - before) / (CLOCKS_PER_SEC / 1000));
+
+ fclose(infile);
+
+ if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
+
+ /* Try to rewrite the output file headers with the actual frame count */
+ for (i = 0; i < number_spatial_layers; i++) {
+ if (!fseek(outfile[i], 0, SEEK_SET)) {
+ write_ivf_file_header(outfile[i], &cfg, frames_in_layer[i]);
+ }
+ fclose(outfile[i]);
+ }
+
+ return EXIT_SUCCESS;
+}
projects / platform / upstream / libvpx.git / commitdiff